The largest known dinosaurs weighed at least 20 million times as much as the smallest,
indicating exceptional phenotypic divergence. Previous studies have focused on extreme …

Research on growing American political polarization and antipathy primarily studies public
institutions and political processes, ignoring private effects, including strained family ties …

Our understanding of macroevolutionary patterns of adaptive evolution has greatly
increased with the advent of large-scale phylogenetic comparative methods. Widely used …

Biologists have long debated the role of behavior in evolution, yet understanding of its role
as a driver of adaptation is hampered by the scarcity of experimental studies of natural …

Over 22,000 species of biotically pollinated flowering plants, including some major
agricultural crops, depend primarily on bees capable of floral sonication for pollination …

Environmental variability has long been postulated as a major selective force in the
evolution of large brains. However, assembling evidence for this hypothesis has proved …

Novel selective pressures derived from human activities challenge the persistence of animal
populations worldwide. Behavior is expected to be a major factor driving animals' responses …

The evolutionary origin of innovativeness remains puzzling because innovating means
responding to novel or unusual problems and hence is unlikely to be selected by itself. A …

Abstract Theory and evidence suggest that some selective pressures are more common on
islands than in adjacent mainland habitats, leading evolution to follow predictable trends …

A unique feature among bees is the ability of some species of Megachile Latreille sl to cut
and process fresh leaves for nest construction. The presence of a razor between the female …